Search International and National Patent Collections

1. (WO2017156944) PIPE COMPONENT FOR PREVENTING NEGATIVE PRESSURE WATER LEAKAGE

Pub. No.:    WO/2017/156944    International Application No.:    PCT/CN2016/089859
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Thu Jul 14 01:59:59 CEST 2016
IPC: E03F 3/04
Applicants: ZHANG, Zhengguo
张正国
Inventors: ZHANG, Zhengguo
张正国
Title: PIPE COMPONENT FOR PREVENTING NEGATIVE PRESSURE WATER LEAKAGE
Abstract:
A pipe component for preventing negative pressure water leakage, comprising a drainage pipe body (1), wherein both sides of the pipe body are provided with a plurality of water inlet openings (2). A baffle is provided on an inner side of the water inlet opening (2). A water outlet is provided on one end of the drainage pipe body (1), and an activated carbon adsorption ring (6) is threadedly connected to the water outlet. The drainage pipe body (1) is internally provided with at least one reinforcing bar (8). Multiple through holes are disposed within the reinforcing bar (8). Securing bars (10) are respectively provided on both sides of a connection between the reinforcing bar (8) and an upper inner wall and on both sides of a connection between the reinforcement bar and a lower inner wall. The reinforcing bar (8) is perpendicularly installed to a cover plate (7). Further provided is a filter mesh with a layer of polyurethane coating. The drainage pipe body (1), the baffle (4), the cover plate (7), the reinforcing bar (8), and securing bars (10) are all provided with a layer of anti-corrosion coating.